Finding the Fourth Proportional to 369,040.72, 553,112.72 and 200,160.58

Step by Step Solution

1. Step 1: Write the proportion equation
   369,040.72 : 553,112.72 = 200,160.58 : x
2. Step 2: Convert to fraction form
   369,040.72/553,112.72 = 200,160.58/x
3. Step 3: Cross multiply
   369,040.72x = 553,112.72 × 200,160.58
4. Step 4: Simplify right side
   369,040.72x = 110,711,362,840.58
5. Step 5: Solve for x
   x = 110,711,362,840.58/369,040.72
6. Step 6: Final answer
   x = 299,997.69